Cinnamon Challenge: Doctors Issue Warning Against Dangerous Trend

The fad involves daring someone to swallow a spoonful of ground cinnamon in 60 seconds without water. But the spice is caustic, and trying to gulp it down can cause choking, throat irritation, breathing trouble and even collapsed lungs, the report said.

Published online Monday in Pediatrics, the report said at least 30 teens nationwide needed medical attention after taking the challenge last year.

The number of poison control center calls about teens doing the prank “has increased dramatically,” from 51 in 2011 to 222 last year, according to the American Association of Poison Control Centers.